I was wondering if your babies have been ill a lot in the first year.
My boy is now almost 8 month and he has only been ill once when got bronchitis. That gave us a fright at first I can tell you. We went straight to hospital with him as it started on a weekend. They gave us some medicine and an inhaling machine to use for a couple of weeks. Since it did not improve for a few days we went to our paediatrician who gave us a stronger medicine for inhaling. We read online that some kids will have bronchitis for month and month but luckily it was gone within 2 weeks or so.
Since then we have had no other health problems.